using System;
using System.Collections;

namespace Goheer
{
	namespace EXIF
	{
		/// <summary>
		/// Summary description for translation.
		/// </summary>
		public class translation : Hashtable
		{
			/// <summary>
			/// 
			/// </summary>
			public translation()
			{
				this.Add(0x8769,"Exif IFD");
				this.Add(0x8825,"Gps IFD");
				this.Add(0xFE,"New Subfile Type");
				this.Add(0xFF,"Subfile Type");
				this.Add(0x100,"Image Width");
				this.Add(0x101,"Image Height");
				this.Add(0x102,"Bits Per Sample");
				this.Add(0x103,"Compression");
				this.Add(0x106,"Photometric Interp");
				this.Add(0x107,"Thresh Holding");
				this.Add(0x108,"Cell Width");
				this.Add(0x109,"Cell Height");
				this.Add(0x10A,"Fill Order");
				this.Add(0x10D,"Document Name");
				this.Add(0x10E,"Image Description");
				this.Add(0x10F,"Equip Make");
				this.Add(0x110,"Equip Model");
				this.Add(0x111,"Strip Offsets");
				this.Add(0x112,"Orientation");
				this.Add(0x115,"Samples PerPixel");
				this.Add(0x116,"Rows Per Strip");
				this.Add(0x117,"Strip Bytes Count");
				this.Add(0x118,"Min Sample Value");
				this.Add(0x119,"Max Sample Value");
				this.Add(0x11A,"X Resolution");
				this.Add(0x11B,"Y Resolution");
				this.Add(0x11C,"Planar Config");
				this.Add(0x11D,"Page Name");
				this.Add(0x11E,"X Position");
				this.Add(0x11F,"Y Position");
				this.Add(0x120,"Free Offset");
				this.Add(0x121,"Free Byte Counts");
				this.Add(0x122,"Gray Response Unit");
				this.Add(0x123,"Gray Response Curve");
				this.Add(0x124,"T4 Option");
				this.Add(0x125,"T6 Option");
				this.Add(0x128,"Resolution Unit");
				this.Add(0x129,"Page Number");
				this.Add(0x12D,"Transfer Funcition");
				this.Add(0x131,"Software Used");
				this.Add(0x132,"Date Time");
				this.Add(0x13B,"Artist");
				this.Add(0x13C,"Host Computer");
				this.Add(0x13D,"Predictor");
				this.Add(0x13E,"White Point");
				this.Add(0x13F,"Primary Chromaticities");
				this.Add(0x140,"ColorMap");
				this.Add(0x141,"Halftone Hints");
				this.Add(0x142,"Tile Width");
				this.Add(0x143,"Tile Length");
				this.Add(0x144,"Tile Offset");
				this.Add(0x145,"Tile ByteCounts");
				this.Add(0x14C,"InkSet");
				this.Add(0x14D,"Ink Names");
				this.Add(0x14E,"Number Of Inks");
				this.Add(0x150,"Dot Range");
				this.Add(0x151,"Target Printer");
				this.Add(0x152,"Extra Samples");
				this.Add(0x153,"Sample Format");
				this.Add(0x154,"S Min Sample Value");
				this.Add(0x155,"S Max Sample Value");
				this.Add(0x156,"Transfer Range");
				this.Add(0x200,"JPEG Proc");
				this.Add(0x201,"JPEG InterFormat");
				this.Add(0x202,"JPEG InterLength");
				this.Add(0x203,"JPEG RestartInterval");
				this.Add(0x205,"JPEG LosslessPredictors");
				this.Add(0x206,"JPEG PointTransforms");
				this.Add(0x207,"JPEG QTables");
				this.Add(0x208,"JPEG DCTables");
				this.Add(0x209,"JPEG ACTables");
				this.Add(0x211,"YCbCr Coefficients");
				this.Add(0x212,"YCbCr Subsampling");
				this.Add(0x213,"YCbCr Positioning");
				this.Add(0x214,"REF Black White");
				this.Add(0x8773,"ICC Profile");
				this.Add(0x301,"Gamma");
				this.Add(0x302,"ICC Profile Descriptor");
				this.Add(0x303,"SRGB RenderingIntent");
				this.Add(0x320,"Image Title");
				this.Add(0x8298,"Copyright");
				this.Add(0x5001,"Resolution X Unit");
				this.Add(0x5002,"Resolution Y Unit");
				this.Add(0x5003,"Resolution X LengthUnit");
				this.Add(0x5004,"Resolution Y LengthUnit");
				this.Add(0x5005,"Print Flags");
				this.Add(0x5006,"Print Flags Version");
				this.Add(0x5007,"Print Flags Crop");
				this.Add(0x5008,"Print Flags Bleed Width");
				this.Add(0x5009,"Print Flags Bleed Width Scale");
				this.Add(0x500A,"Halftone LPI");
				this.Add(0x500B,"Halftone LPIUnit");
				this.Add(0x500C,"Halftone Degree");
				this.Add(0x500D,"Halftone Shape");
				this.Add(0x500E,"Halftone Misc");
				this.Add(0x500F,"Halftone Screen");
				this.Add(0x5010,"JPEG Quality");
				this.Add(0x5011,"Grid Size");
				this.Add(0x5012,"Thumbnail Format");
				this.Add(0x5013,"Thumbnail Width");
				this.Add(0x5014,"Thumbnail Height");
				this.Add(0x5015,"Thumbnail ColorDepth");
				this.Add(0x5016,"Thumbnail Planes");
				this.Add(0x5017,"Thumbnail RawBytes");
				this.Add(0x5018,"Thumbnail Size");
				this.Add(0x5019,"Thumbnail CompressedSize");
				this.Add(0x501A,"Color Transfer Function");
				this.Add(0x501B,"Thumbnail Data");
				this.Add(0x5020,"Thumbnail ImageWidth");
				this.Add(0x502,"Thumbnail ImageHeight");
				this.Add(0x5022,"Thumbnail BitsPerSample");
				this.Add(0x5023,"Thumbnail Compression");
				this.Add(0x5024,"Thumbnail PhotometricInterp");
				this.Add(0x5025,"Thumbnail ImageDescription");
				this.Add(0x5026,"Thumbnail EquipMake");
				this.Add(0x5027,"Thumbnail EquipModel");
				this.Add(0x5028,"Thumbnail StripOffsets");
				this.Add(0x5029,"Thumbnail Orientation");
				this.Add(0x502A,"Thumbnail SamplesPerPixel");
				this.Add(0x502B,"Thumbnail RowsPerStrip");
				this.Add(0x502C,"Thumbnail StripBytesCount");
				this.Add(0x502D,"Thumbnail ResolutionX");
				this.Add(0x502E,"Thumbnail ResolutionY");
				this.Add(0x502F,"Thumbnail PlanarConfig");
				this.Add(0x5030,"Thumbnail ResolutionUnit");
				this.Add(0x5031,"Thumbnail TransferFunction");
				this.Add(0x5032,"Thumbnail SoftwareUsed");
				this.Add(0x5033,"Thumbnail DateTime");
				this.Add(0x5034,"Thumbnail Artist");
				this.Add(0x5035,"Thumbnail WhitePoint");
				this.Add(0x5036,"Thumbnail PrimaryChromaticities");
				this.Add(0x5037,"Thumbnail YCbCrCoefficients");
				this.Add(0x5038,"Thumbnail YCbCrSubsampling");
				this.Add(0x5039,"Thumbnail YCbCrPositioning");
				this.Add(0x503A,"Thumbnail RefBlackWhite");
				this.Add(0x503B,"Thumbnail CopyRight");
				this.Add(0x5090,"Luminance Table");
				this.Add(0x5091,"Chrominance Table");
				this.Add(0x5100,"Frame Delay");
				this.Add(0x5101,"Loop Count");
				this.Add(0x5110,"Pixel Unit");
				this.Add(0x5111,"Pixel PerUnit X");
				this.Add(0x5112,"Pixel PerUnit Y");
				this.Add(0x5113,"Palette Histogram");
				this.Add(0x829A,"Exposure Time");
				this.Add(0x829D,"F-Number");
				this.Add(0x8822,"Exposure Prog");
				this.Add(0x8824,"Spectral Sense");
				this.Add(0x8827,"ISO Speed");
				this.Add(0x8828,"OECF");
				this.Add(0x9000,"Ver");
				this.Add(0x9003,"DTOrig");
				this.Add(0x9004,"DTDigitized");
				this.Add(0x9101,"CompConfig");
				this.Add(0x9102,"CompBPP");
				this.Add(0x9201,"Shutter Speed");
				this.Add(0x9202,"Aperture");
				this.Add(0x9203,"Brightness");
				this.Add(0x9204,"Exposure Bias");
				this.Add(0x9205,"MaxAperture");
				this.Add(0x9206,"SubjectDist");
				this.Add(0x9207,"Metering Mode");
				this.Add(0x9208,"LightSource");
				this.Add(0x9209,"Flash");
				this.Add(0x920A,"FocalLength");
				this.Add(0x927C,"Maker Note");
				this.Add(0x9286,"User Comment");
				this.Add(0x9290,"DTSubsec");
				this.Add(0x9291,"DTOrigSS");
				this.Add(0x9292,"DTDigSS");
                this.Add(0x9C9B,"XPTitle");
                this.Add(0x9C9C,"XPComment");
                this.Add(0x9C9D,"XPAutor");
                this.Add(0x9C9F,"XPKeywords");
                this.Add(0xA000,"FPXVer");
				this.Add(0xA001,"ColorSpace");
				this.Add(0xA002,"PixXDim");
				this.Add(0xA003,"PixYDim");
				this.Add(0xA004,"RelatedWav");
				this.Add(0xA005,"Interop");
				this.Add(0xA20B,"FlashEnergy");
				this.Add(0xA20C,"SpatialFR");
				this.Add(0xA20E,"FocalXRes");
				this.Add(0xA20F,"FocalYRes");
				this.Add(0xA210,"FocalResUnit");
				this.Add(0xA214,"Subject Loc");
				this.Add(0xA215,"Exposure Index");
				this.Add(0xA217,"Sensing Method");
				this.Add(0xA300,"FileSource");
				this.Add(0xA301,"SceneType");
				this.Add(0xA302,"CfaPattern");
				this.Add(0x0,"Gps Ver");
				this.Add(0x1,"Gps LatitudeRef");
				this.Add(0x2,"Gps Latitude");
				this.Add(0x3,"Gps LongitudeRef");
				this.Add(0x4,"Gps Longitude");
				this.Add(0x5,"Gps AltitudeRef");
				this.Add(0x6,"Gps Altitude");
				this.Add(0x7,"Gps GpsTime");
				this.Add(0x8,"Gps GpsSatellites");
				this.Add(0x9,"Gps GpsStatus");
				this.Add(0xA,"Gps GpsMeasureMode");
				this.Add(0xB,"Gps GpsDop");
				this.Add(0xC,"Gps SpeedRef");
				this.Add(0xD,"Gps Speed");
				this.Add(0xE,"Gps TrackRef");
				this.Add(0xF,"Gps Track");
				this.Add(0x10,"Gps ImgDirRef");
				this.Add(0x11,"Gps ImgDir");
				this.Add(0x12,"Gps MapDatum");
				this.Add(0x13,"Gps DestLatRef");
				this.Add(0x14,"Gps DestLat");
				this.Add(0x15,"Gps DestLongRef");
				this.Add(0x16,"Gps DestLong");
				this.Add(0x17,"Gps DestBearRef");
				this.Add(0x18,"Gps DestBear");
				this.Add(0x19,"Gps DestDistRef");
				this.Add(0x1A,"Gps DestDist");
			}
		}
		/// <summary>
		/// private class
		/// </summary>
		internal class Rational
		{
			private int n;
			private int d;
			public Rational(int n, int d)
			{
				this.n = n;
				this.d = d;
				simplify(ref this.n, ref this.d);
			}
			public Rational(uint n, uint d)
			{
				this.n = Convert.ToInt32(n);
				this.d = Convert.ToInt32(d);

				simplify(ref this.n, ref this.d);
			}
			public Rational()
			{
				this.n= this.d=0;
			}
			public string ToString(string sp)
			{
				if( sp == null ) sp = "/";
				return n.ToString() + sp + d.ToString();
			}
			public double ToDouble()
			{
				if( d == 0 )
					return 0.0;

				return Math.Round(Convert.ToDouble(n)/Convert.ToDouble(d),2);
			}
			private void simplify( ref int a, ref int b )
			{
				if( a== 0 || b == 0 )
					return;

				int	gcd = euclid(a,b);
				a /= gcd;
				b /= gcd;
			}
			private int euclid(int a, int b)
			{
				if(b==0)	
					return a;
				else		
					return euclid(b,a%b);
			}
		}
	}
}